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Surf Forecasts:

Katagai surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 pm Saturday 11 Apr 2026 JST
Forecast update in hr  min  s Forecast update imminent
Katagai surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Katagai sea temperature is
15.0° C
 (Which is 2.6°C colder than average for this time of year)

How big are the waves at Katagai today?

The current surf forecast for Katagai at 12AM is: 0.9m 8s primary swell from a South-southeast direction and 0.4m 9s secondary swell from a Southeast direction, 0.5m 4s secondary swell from a Northeast direction (forecast issued at 08:00pm April 11). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (12 Apr)1.5ft (0.5m)11s
Afternoon (12 Apr)1.5ft (0.5m)10s
Evening (12 Apr)1.5ft (0.5m)10s

Table - waves today at Katagai. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Sat
11
Sunday
12
Monday
13
Tuesday
14
6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM
Rating
(10 max)
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.1
SSE
1
S
0.9
SSE
0.5
SE
0.5
SE
0.5
SE
0.5
SE
0.5
SE
0.5
SE
0.5
SE
0.5
SE
0.5
SE
0.5
SE
0.5
SE
0.5
SE
0.6
SE
0.6
SE
0.6
SE
0.6
SE
0.6
SE
0.6
SE
0.6
SE
0.6
SE
0.8
SE
Period(s) (?)8889911101010101010101010101010101010101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)159121963738555453535353535353538989898584828080141
Wind
(km/h)
5
N
15
N
20
NNE
15
NE
10
ENE
5
ESE
15
S
25
S
20
S
15
SSW
10
SSW
10
SSW
15
S
20
S
20
S
20
S
15
S
10
S
10
S
10
S
5
SSE
10
SE
15
ESE
15
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscross-
off		cross-
off		crosscross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		onononon
High Tide
/ height (m)
2:15AM
1.17
Low Tide
/ height (m)
5:33PM
0.49
7:40AM
1.03
Sat
11
Sunday
12
Monday
13
Tuesday
14
Sunrise----5:09-------5:09-------5:07---
Sunset6:07-------6:07-------6:07-------
clear
clear
part cloud
cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
clear
part cloud
Rain (mm)
------------------------
Temp. °C201917161516161616161616161718181717161616171818
Feels °C (?)211814131213121112141515141414141516151616161615
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Katagai surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Katagai at:
surf-forecast.com

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